Acoustic backup alarm capable of dual technology (acoustical and optical) operation



FIG. 1 is a perspective view looking downwardly from the right side thereof of an acoustic backup alarm in accordance with the invention;

FIG. 2 is a perspective view similar to FIG. 1, but looking downwardly from the left of the acoustic backup alarm in accordance with the invention;

FIG. 3 is a front elevational view thereof;

FIG. 4 is an elevational view of the right side thereof;

FIG. 5 is an elevational view from the left side thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for an acoustic backup alarm capable of dual technology (acoustical and optical) operation, as shown and described. 